Patents by Inventor Yasuyuki Takeda

Yasuyuki Takeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240092084
    Abstract: A technique capable of certainly suppressing adhesion of waste ink to hands, clothes, and the like during replacement of a waste ink tank is provided. There are included a container portion provided with an insertion port which a discharge member discharging waste ink can be inserted into and pulled out from and a shielding portion movable between a shielding position where the insertion port is shielded and an open position where the insertion port is opened.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 21, 2024
    Inventors: KOKI SHIMADA, TOSHIAKI SOMANO, YUTA ARAKI, KAORI KATAYAMA, YUSUKE TANAKA, TETSU HAMANO, ERIKA IYAMA, FUMIE KAMEYAMA, NOBUHIRO TOKI, YASUYUKI TAKANAKA, DAIJU TAKEDA
  • Patent number: 11880059
    Abstract: A backlight for providing illumination to a liquid crystal panel includes a reflective polarizer and an extended light source. The extended light source includes a diffuse reflective film assembly and an emission surface disposed between the reflective polarizer and the diffuse reflective film assembly. The extended light source is configured to emit light through the emission surface toward the reflective polarizer. The diffuse reflective film assembly includes a specularly reflective film and an optically diffusive film disposed between the emission surface and the specularly reflective film. The optically diffusive film is bonded to the specularly reflective film at a plurality of discrete spaced apart bonded locations with a total bonding area of less than about 20%.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: January 23, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Yasuyuki Takeda
  • Publication number: 20220341356
    Abstract: In an exhaust gas purification catalyst, a catalytic component (100) containing a first oxide (21), a second oxide (22), and a precious metal (30) is supported on a three-dimensional structure (10); the ratio of the amount of precious metal (30) supported on the first oxide (21) to the total amount of precious metal (30) supported on the first oxide (21) and precious metal (30) supported on the second oxide (22), or the ratio of the amount of precious metal (30) supported on the second oxide (22) to the total amount of precious metal (30) supported on the first oxide (21) and precious metal (30) supported on the second oxide (22) is 70% or more to 100% or less, as measured by an electron probe microanalyzer (EPMA); and the amount of carbon monoxide that the precious metal (30) can adsorb per unit mass is 15 mL/g or more to 100 mL/g or less.
    Type: Application
    Filed: October 6, 2020
    Publication date: October 27, 2022
    Applicant: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Yasuyuki TAKEDA, Shigekazu MINAMI
  • Publication number: 20220299698
    Abstract: A backlight for providing illumination to a liquid crystal panel includes a reflective polarizer and an extended light source. The extended light source includes a diffuse reflective film assembly and an emission surface disposed between the reflective polarizer and the diffuse reflective film assembly. The extended light source is configured to emit light through the emission surface toward the reflective polarizer. The diffuse reflective film assembly includes a specularly reflective film and an optically diffusive film disposed between the emission surface and the specularly reflective film. The optically diffusive film is bonded to the specularly reflective film at a plurality of discrete spaced apart bonded locations with a total bonding area of less than about 20%.
    Type: Application
    Filed: August 26, 2020
    Publication date: September 22, 2022
    Inventor: Yasuyuki Takeda
  • Patent number: 11034659
    Abstract: Cystic fibrosis is developed through mutation of Cystic Fibrosis Transmembrane conductance Regulator (CFTR), which is one type of chloride channel. An object of the present invention is to provide compounds effective in the treatment of cystic fibrosis that open a chloride channel different from CFTR, which is the cause of the disease, and do not depend on CFTR. Compounds of the present invention are compounds or pharmaceutically acceptable salts thereof that open calcium dependent chloride channels (CaCCs) via G-protein coupled receptor 39 (GPR39) agonism to have strong chloride ion-secretory action, and are represented by the following general formula (I): General formula (I): wherein, X represents a carboxyl group or a tetrazolyl group; Q represents a C1-C3 alkylene group, an oxygen atom, a sulfur atom, etc.; G represents a phenyl group where the phenyl group may have 1 to 3 substituents independently selected from the group consisting of a halogen atom, a cyano group, a C1-C6 alkyl group, etc.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: June 15, 2021
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Yamato Suzuki, Toshiharu Noji, Hidenobu Murafuji, Satoshi Muneoka, Hidekazu Inoue, Bitoku Takahashi, Rie Inaba
  • Publication number: 20200172494
    Abstract: Cystic fibrosis is developed through mutation of Cystic Fibrosis Transmembrane conductance Regulator (CFTR), which is one type of chloride channel. An object of the present invention is to provide compounds effective in the treatment of cystic fibrosis that open a chloride channel different from CFTR, which is the cause of the disease, and do not depend on CFTR. Compounds of the present invention are compounds or pharmaceutically acceptable salts thereof that open calcium dependent chloride channels (CaCCs) via G-protein coupled receptor 39 (GPR39) agonism to have strong chloride ion-secretory action, and are represented by the following general formula (I): General formula (I): wherein, X represents a carboxyl group or a tetrazolyl group; Q represents a C1-C3 alkylene group, an oxygen atom, a sulfur atom, etc.; G represents a phenyl group where the phenyl group may have 1 to 3 substituents independently selected from the group consisting of a halogen atom, a cyano group, a C1-C6 alkyl group, etc.
    Type: Application
    Filed: December 26, 2017
    Publication date: June 4, 2020
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Yamato Suzuki, Toshiharu Noji, Hidenobu Murafuji, Satoshi Muneoka, Hidekazu Inoue, Bitoku Takahashi, Rie Inaba
  • Patent number: 9751887
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: September 5, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Publication number: 20160046639
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Patent number: 9187489
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: November 17, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Publication number: 20150051190
    Abstract: The present invention is intended to provide a compound or a pharmacologically acceptable salt thereof which is useful in the treatment of a tumor through its ROS1 kinase enzyme activity inhibitory effect and NTRK kinase enzyme inhibitory effect. The present invention provides a compound having an imidazo[1,2-b]pyridazine structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, and a pharmaceutical composition comprising the compound. In the formula, R1, G, T, Y1, Y2, Y3, and Y4 are as defined herein.
    Type: Application
    Filed: June 3, 2013
    Publication date: February 19, 2015
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Yasuyuki Takeda, Kenji Yoshikawa, Yoshiko Kagoshima, Yuko Yamamoto, Ryoichi Tanaka, Yuichi Tominaga, Masaki Kiga, Yoshito Hamada
  • Patent number: 7842818
    Abstract: The present invention provides a method for effectively producing an optically active form of tetrasubstituted-5-azaspiro[2.4]heptane derivative, which serves as a useful production intermediate for quinolonecarboxylic acid antibacterial agents, and intermediates for the derivative. The present invention is directed to a method for producing a compound (VII) according to the following scheme.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: November 30, 2010
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Hisashi Takahashi, Rie Miyauchi, Yasuyuki Takeda, Kazuo Kanai, Junichi Kuroyanagi, Satoshi Komoriya, Makoto Takemura
  • Patent number: 7727426
    Abstract: Disclosed is an epoxy resin composition which is solid at ordinary room temperature, cures with excellent light resistance and heat resistance and minimal shrinkage, and is useful for encapsulating LEDs. The epoxy resin composition is characterized by comprising as an essential component an epoxy resin having an epoxy equivalent of 300-1000 g/eq and a softening point of 65-110° C. obtained by reacting a nonaromatic polycarboxylic acid (A) having an acid value of 100-250 mgKOH/g with a nonaromatic epoxy resin (B) having an epoxy equivalent of 100-400 g/eq. The nonaromatic polycarboxylic acid (A) may be obtained by reacting 1,4-cyclohexanedimethanol, 2,2-bis(4-hydroxycyclohexyl)propane, or 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5,5]undecane with methylhexahydrophthalic acid or hexahydrophthalic acid.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: June 1, 2010
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Kazumasa Kobayashi, Chiaki Asano, Hiroshi Sato, Yasuyuki Takeda, Kazuhiko Yoshida
  • Publication number: 20090270637
    Abstract: The present invention provides a method for effectively producing an optically active form of tetrasubstituted-5-azaspiro[2.4]heptane derivative, which serves as a useful production intermediate for quinolonecarboxylic acid antibacterial agents, and intermediates for the derivative. The present invention is directed to a method for producing a compound (VII) according to the following scheme.
    Type: Application
    Filed: September 28, 2006
    Publication date: October 29, 2009
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Hisashi Takahashi, Rie Miyauchi, Yasuyuki Takeda, Kazuo Kanai, Junichi Kuroyanagi, Satoshi Komoriya, Makoto Takemura
  • Publication number: 20090215969
    Abstract: Disclosed is an epoxy resin composition which is solid at ordinary room temperature, cures with excellent light resistance and heat resistance and minimal shrinkage, and is useful for encapsulating LEDs. The epoxy resin composition is characterized by comprising as an essential component an epoxy resin having an epoxy equivalent of 300-1000 g/eq and a softening point of 65-110° C. obtained by reacting a nonaromatic polycarboxylic acid (A) having an acid value of 100-250 mgKOH/g with a nonaromatic epoxy resin (B) having an epoxy equivalent of 100-400 g/eq. The nonaromatic polycarboxylic acid (A) may be obtained by reacting 1,4-cyclohexanedimethanol, 2,2-bis(4-hydroxycyclohexyl)propane, or 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5,5]undecane with methylhexahydrophthalic acid or hexahydrophthalic acid.
    Type: Application
    Filed: August 23, 2006
    Publication date: August 27, 2009
    Applicant: NIPPON STEEL CHEMICAL CO., LTD
    Inventors: Kazumasa Kobayashi, Chiaki Asano, Hiroshi Sato, Yasuyuki Takeda, Kazuhiko Yoshida
  • Publication number: 20090186868
    Abstract: A compound represented by the general formula (1) [X1 and X2 represent hydrogen atom, a halogen atom, hydroxyl group and the like, R1 represents a phenyl group, R2 represents an alkyl group, an alkenyl group, or an alkoxy group, R3 represents hydrogen atom, a halogen atom, hydroxyl group, or an alkoxy group, R4 represents hydrogen atom, or an alkyl group, Z1 and Z2 represent hydrogen atom, a halogen atom, hydroxyl group and the like, Z3 represents cyano group, an alkyl group, an alkenyl group and the like, Z4 represents an alkyl group, an alkenyl group, an alkynyl group and the like, and represents a single bond or a double bond], which shows high antitumor effect against cancer cells including drug resistant cells.
    Type: Application
    Filed: October 24, 2006
    Publication date: July 23, 2009
    Applicant: Daiichi Sankyo Company Limited
    Inventors: Kouichi Uoto, Yasuyuki Takeda, Atsunobu Sakamoto, Yoshihiro Takayanagi
  • Publication number: 20070202339
    Abstract: This invention relates to an epoxy resin composition suitable for a solvent-free, one-component, room temperature-curable coating composition and to an epoxy-polysiloxane coating composition showing good adhesion to steel plates and the like and excellent weatherability. This epoxy resin composition comprises (a) an epoxy resin with an epoxy equivalent of 100-1000 g/eq., (b) a silane compound represented by the following general formula (1) Si(R1R2R3R4)??(1) (wherein R1 is an alkyl group of 1-6 carbon atoms and R2-R4 are hydrogen atoms, alkyl groups of 1-10 carbon atoms, aryl groups, hydroxyl groups, or alkoxy groups of 1-6 carbon atoms) and a condensate thereof, and (c) a phosphoric acid represented by the following general formula (2) H(n+2)PnO(3n+1)??(2) as essential components.
    Type: Application
    Filed: August 3, 2005
    Publication date: August 30, 2007
    Applicant: NIPPON STEEL CHEMICAL CO., LTD.
    Inventors: Mutsumi Yoshida, Kazuaki Nishiyama, Nobuyuki Furukawa, Yasuyuki Takeda, Makoto Matsuura
  • Publication number: 20050025912
    Abstract: To provide an image-recording medium, which can form a high quality image thereon without yellowing (the shift of color tone) or the blotting of the ink with both the dye ink and the pigment ink. An image-recording medium having a support having breathing micropores, the surfaces and the micropores of which are made hydrophilic, and an ink-receptive layer which is provided on the surface of the support and comprises a binder and a coagulant, characterized in that the ink-receptive layer contains a cationic organic oligomer having a cationic functional group in the molecule, or a cationic polymer having a cationic functional group in the molecule as a coagulant.
    Type: Application
    Filed: May 23, 2002
    Publication date: February 3, 2005
    Inventor: Yasuyuki Takeda
  • Patent number: 6807480
    Abstract: A vicinity search using register point data in a designated area reduces search time. The vicinity search data include at least category information, names of register points and country information. The search device conducts the vicinity search by specifying any one of category information to which the register points belong, names of the register points and country information, or a combination, by option and display. The search device further uses category information with flags representing the presence and absence of the register point data, whereby the register point data are searched by referring to the flags.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 19, 2004
    Assignee: Aisin AW Co., Ltd.
    Inventors: Hironari Iwasaki, Shogo Ito, Kazuhiro Ikeda, Koji Kato, Yasuyuki Takeda
  • Publication number: 20040126508
    Abstract: To provide an image-recording medium, which has increased adhesion between an image-receptive layer and a retroreflective sheet, can easily increase the outdoor durability including water resistance, and can effectively increase the retroreflection luminance of an image-recorded surface.
    Type: Application
    Filed: February 24, 2003
    Publication date: July 1, 2004
    Inventor: Yasuyuki Takeda
  • Patent number: 6677456
    Abstract: This invention is to provide a novel taxol derivative useful as an antitumor compound having respective substituent groups, represented by the following formula (I) which can be orally administered
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: January 13, 2004
    Assignee: Daiichi Pharmaceutical Co., Ltd.
    Inventors: Tsunehiko Soga, Kouichi Uoto, Yasuyuki Takeda